Buffer for couplings.



R. .H. ALDRICH.

BUFFER FOR COUPLINGS.

APPLICATION FILED MAR. 1, 1916.

1,204,925. Patented Nov. 14, 1916.

WITNESSES j/VVg/VTOR I Anon/VH8 UNITED STATES PATENT OFFICE."

ROSCOE HILTON ALDRICH, OF ALLENTOWN, PENNSYLVANIA, ASSIGNOB TO THE ALDRICH PUMP COMPANY, OF ALLEN-TOWN, PENNSYLVANIA.

BUFFER FOR COUPLINGS.

ign tes.

Specification of Letters Patent.

Patented Nov. 14, 1916.

Application filed March 1, 1916. Serial N 0. 81,387.

of Allentown, in the countyof Lehigh and State of Pennsylvania, have invented a new and Improved Bufl'er for Couplings, of which the following is a full, clear, and exact description.

My invention relates to flexible couplings, and has reference more particularly to the bufi'ersof the coupling.

The object of the invention is to provide a simple, inexpensive and durable buffer of compressible material provided with yield ing reinforcing parts.

With the above and other objects in view, the nature of which will more fully appear as the description proceeds, the invention consists in the novel construction, combina: tion and arrangement of parts as herein fully described, illustrated and claimed. Q

In the accol'npanying drawings, forming part of the application, similar characters of reference indicate corresponding parts in all. the views Figure 1 is a section of a flexible conpling provided with an embodiment of my invention; Fig. 2 is a plan view of a buffer partly in section to show the details of construction; Fig. 3 is a cross section on line 3-3, Fig. 2; and Fig. 4 is a perspective view of the buffer reinforcement.

Referring to the drawings, 5 is the com pressible body of the buffer, which is preferably a rubber composition. It is molded about a central, tubular, unyielding core 6 which forms the bushing of the buffer and to which core the .composition is anchored through the medium of scooplike, yielding blades 7 projecting from the core and embedded in the body.

The scooplike blades 7 have the major part thereof extending parallel to the circumference of, the core and substantially concentric therewith. 1 Their length is less than that of the core, so that they are n0rlnally inclosed within the compressible body 51 The blades 7' being yieldable do not interfere with the deflection of the compressible body 5 exceptto increase its resiliency, but prevent thestripping of the body from the core under the variation of pressure caused by the .coupling members to which the buffer is attached.

I claim:

1. In a buffer for flexible couplings, a body of compressible material, and an axial, unyielding, tubular core, having scooplike blades embedded in the material and forming an integral part of said core.

2. In a buffer for flexible couplings, a body of compressible material, and an axial, unyielding, tubular core, having means anchoring the material to the core, forming an integral part of the core and adapted to yield when pressure is applied to the compressible material.

3. In a buffer for flexible couplings, a body of compressible material, and an axial, unyielding, tubular core, having scooplike blades embedded in the material and forming an integral part of the core, said blades being adapted to yield when pressure is applied to the compressible material.

4. In a buffer for flexible couplings, a

body of compressible material, and a tubular, .unyielding core in the central part of the body, having scooplike, yielding blades embedded in the body and forming an integral part of the core, the major part of said blades being parallel to the lateral surface of the core and substantially concentric therewith. v

5. In a buffer for flexible couplings, a body of compressible material, and an unyielding, tubular core, having yielding, curved blades extending from the core into the body for anchoring said body to the core, said blades being curved to yield largely in the radial direction of the tubular core.

In testimony whereof I have signed my name to this specification in the presence of 7 

